Opal is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She is a mobian jellyfish and a member of the Pirates of the Setting Dawn. Opal is an average sized mobian jellyfish, roughly around the height of Espio the Chameleon, with a pear-shaped figure. She has yellow skin, dark grey eyes and a gelatinous umbrella-shaped bell head with tentacles drooping from the sides. Two stingers are hidden among these tentacles. She sports a black sundress with a skull emblem on both sides of her hips. She also wears two differently colored bangles; black bangles on both wrists and gold bangles with small blue beads on both her wrists and ankles.